Today's Google Doodle celebrates Robert Koch, the father of bacteriology. But more importantly, Koch was the scientist who figured out how to study bacteria in the first place. GoogleHe first isolated cultures of bacteria on potato slices, then became one of the first to adopt the Petri dish (today's Google Doodle includes images of both). Koch also laid the groundwork for modern epidemiology, spelling out four criteria for linking a disease to a pathogen. Once Koch had discovered what caused tuberculosis, a cure seemed like the logical next step.

Source: Forbes December 10, 2017 04:07 UTC